Improvement in the manufacture of paper



Mimi ae-Mw 'ELiAs' T. FORD, or STILLWATER, NEW ifo-RK.`

' Letters Patent No. 83,616, dated November 3, 1868.

The Schedule referred to n these Letters Patent and making part of the same;

To all whom it may concern.:

Be it known that I, ELIAS T. FORD, lof the town of Stillwater, in the county of Saratoga, and State ofA New York, have invented new and useful Improvements in the Art of Making Paper, in theuse of a perforated cylinder, with an interior suction-box or chamber; and 4I do-hereby declare that the following is an exact and full description thereof, reference being had to the-accompanying drawingpzmd to the letters of reference marked thereon.

The nature of my invention consists in allowing the pulp to come upon, or nearly to', the top surface and side of the perforated cylinder, containing an interior suction-chamber, with tubular bcarin gs, in which a portion of the water is sucked through the wire cloth encompassing the peribrated cylinder A, and extracted through each tubulanbearing, C C, by means of suction-pumps or Siphon-pipes, the suction-pipes of the pump being connected to the bearings C O, around which the cylinder-hubs F F rotate.

The agitation of the pulp, and the horizontal 'and reciprocal movement of the cylinder A, and the reservoir D, interweave the fibre in the forming of the sheet of paper upon the cylinder A similar to that formed upon an endless wire cloth, as usedupon Foiudrinier machines. l"

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

Iigure 1 is a side top View of the machine, withV mostly all of its parts, and

Figures 2, 3, 4, 5,6, 7,8, and 9 are detached secP tions of fig. 1, with few exceptions.

' Fig. 2 represents the perforated cylinder A, with a portion left o if, illustrating the interior suction-box or chamber B, with tubular journals C C communicating with the chamber B and space N. The sides B B, in connection with the end sections B X B X, which extend upward to the packing-plate IA and the plate P, encompass the sides B B, all of which constitute the sucking-chamber B.

The plate P may be adjusted. to the sides B B, so as to allow different thicknesses of rubber packing, Z, which are used without or with the addition of the plate X n, and spiral 'springs h fi, h t', h i, Il. t', h i, as seen in fig; 9. The sides B B extend upward through the plate P, nearly to the interior surface of cylinder A, thereby producing this flanges d d, which hold the packing Z in place, in connection with the side flanges b b, as seen in iig. 2 and iig. 4.

The rubber packing Z is used to prevent the inlet of air to the chamber B.

Th left cylinder-head, E, is Vleft out, with the view of pu ting the suction-chamber B into and out of the cylinder A. The cylinder-heads E may be constructedrwitliout orwith arms, as seen in g. 5, having tubular hubs or journals F F, and also projecting -hub,vI4, of cylinder-head E, as seen in fig. 2. The left head, E, is placed within the left extremity of cylinder 'A, the bearing C of chamber B enteling and..passing through the left hub, F, of cylinder-head E, similar' to that of the right head.

I now locate the cylinderA upon the frame y y, and insert the driving-pulleyV upon the cylinder-hub F.

' The right and left standards, T T, are now placed upon the bearings G C, which project through the cylinder-hubs F F, and are held stationary to the standards T T by means of the set-screws jj, as seen in fi '1.

gThe frame Y Y is provided with four friction-rolls, U U, apertures being cut through the frame Y, two of which may be seen in hg. 1; the rolls U U U U rest upon the sub frame K n.

Letters Z Z Z Z represent the guide-lugs attached to the sub-frame Kn, holding the frame Y, with all of its attachments, upon the frame K n in its horizontal movement.-

ing the roll G, which is covered with rubber, and held to the Vsides I) Dby means of the levers Q Q. Their fulcra are situated near the circumference of the roll G, and connected to the bar h S at their upper extrem ities, from which two cords extend to the rear, leading over the reservoir D, to which the weights L vL are attached.

The apron-bar K is connected to the side levers Q Q, just above the circumference of the roll G by the slots -et a, and the 'bar K, holding the apron S, `which extends to the rear, covering the elongated aperture near the plate J. v

The board W, with the strip of rubber, X, as seen in fig. 8, may be used for the purpose of preventing the dripof pulp at the'rear of the cylinder A.

The'rubber strip X is fastened to the wooden bar WV, and so arranged that it presses lightly upon or against the wire cloth-facing which encompasses the perforatedcylinder A.

The reservoir D, with all of its attachments, 'is turned around and connected to the rear of cylinder A, the sides I) D resting upon the circular anges 'u u, formed upon the sides of cylinder-heads E E, as seen in iig. 2, lig. 5, and tig. 3.

The front portion of the sides DD of reservoir are formed to correspond with the circular flanges u u.

Suitable packing may also be used, adjacent to the sides D D and flanges 'u n, for the prupose of preventing the chip or fall of water and pulp.

The bars 0' r are connected to the right and left sides, D D, forming the reservoir, as also seen in fig.' l, extending forward, and holding the two slice-bars,l H H.

Over the top surface of the perforated cylinder A, one slice-bar, H, is located, a little in rear of the interior suction-chamber and space N, and the front slicebar, H, is located near the centre of space N, or so adjusted as to regulate the flow of' -pulp forming .the sheet of paper, and permitting the suction to assist in the formation, and sucking the surplus water from the sheetbefore coming to the couch-roll 0.

Fig. (3 is a view of the rubber packingLZ, to be located upon the plate P; the rubber Z to enclose the flailges d (l, and surrounding the open space N. I farther retain the packing Z, by the use of the side fianges b b, as seen in fig. 4 and fig. 2. The rubber packing, Z, is left off in order to show the flanges b b, l d.

Fig. 7 presents another yew of the perforated cy inder A, with the addition of the bars r c c e, shown in sections, placed upon and running parallel with the interior suction-chamber B, and each other, leaving a space between each bar. The space left may be less or equal,to the thickness of each bar e, and the bars fr are secured, at their extremities, to the enlarged cylinder-heads E E, when said bars 'v are used.

The open spaces at the extremities of each bar c are filled or closed with rubber or metal, so as to conform to the circumference of the oylinder A, thus constructed.

The bars c fv may be used for the purpose of providing more space between the perfbrated shell A and wirecloth facing, so as to allow a more free circulation of( water, and to free the Wire facing from pulp or other matter by the use of a shower-pipe underneath; the cylinder A. The outer edges of the bars 'v IL' 1- are bevelled.

The chamber B, with the space N, may be enlarged to one-third or more of the interior space of the cylinder A, if necessary, to produce the results set forth.

Operation.

The pulp is let into the reservoir D through an aperture made at the rear of the reservoir D, rising np at the side ofthe plate c, as seen in' fig. 3, and nearly filling the reservoir D. Two motions are given, a circular to the cylinderA and roll G, in the directions indicated by the arrows, and at the same time a horizontal and reciprocal Inotion, right and left, to the cylinder A, roll G,-reservoir D, containing the pulp, standards T T, and ame Y Y, the frame YX moving upon the rolls U U U U, ro-

tating` upon the sub-Haine X t: by the movement of the lever A1), thereby causing a continued af Y,itationl of the pulp, interweaving the fibres in the formation of the sheet of paper upon the cylinder, as herein described more definitely.

Now, as the cylinder A is moved forward in the direction of the arrows, a portion of the water contained with the pulp is leached or filtered through the Vcylinder-facing and perforations of the cylinder A, in rear of' the interior suction-chamber B; and, as the sheetof paper is now commenced to form upon, and moving with the cylinder A to and beyond the slice-bars H H and suction-chamber B, the flow of pulp and thickness of the sheet are regulated, as well as perfectly formed, and the surplus water is extracted, passing over the space N of the interior chamber B, and couched or transferred upon the felt from the cylinder A, by passing between the cylinder A and conch-roll O, as seen in fig. I.

The surplus water is drawn into the suction-space N of chamber B, passing right and left through the tubular bearings C C, ofthe heads B X, B X, by means of suction-pumps orv siphon-pipes, which may be connected to one or both ofthe tubular bearings, O C, as before mentioned.

Certain other devices are used with this cylindermachine, known to those skilled in the art of making paper.

That I claim, and desire to secure by Letters Patent, is

l. The perforated cylinder A, with the interior suction-box B, both constructed and arranged to operate substantially as herein described.

2. In combination with the perforated cylinder A, the suction-box B, when constructed and arranged to operate substantially as herein described, and for the purpose set forth.

3. The reservoir D, with a packing-roll G, or its equivalent, for preventing drip, in combination with the forming-cylinder A, when constructed and arranged to operate substantially as herein described.

4. In combination with the perforated cylinder A and sucking-box B, the slice-bars r lr and blades H H,

I when constructed and airan ged to operate substantially as herein described, and for the purpose set forth.

5, Providing the forming-cylinder A, and its attachnient, as herein described, with a reciprocating movement, for the purpose of interweaving the fibre of the pulp, as set forth.

ELIAS T. FORD.

YVitnesses:

CHARLES E. BUFFINTON, L. T. TELL. 

